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Finding the Fourth Proportional to 89,326.80, 133,939.17 and 36,693

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Solution

The fourth proportional to 89,326.80, 133,939.17 and 36,693 is: 55,018.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,326.80 : 133,939.17 = 36,693 : x
  2. Step 2: Convert to fraction form
    89,326.80/133,939.17 = 36,693/x
  3. Step 3: Cross multiply
    89,326.80x = 133,939.17 × 36,693
  4. Step 4: Simplify right side
    89,326.80x = 4,914,629,964.81
  5. Step 5: Solve for x
    x = 4,914,629,964.81/89,326.80
  6. Step 6: Final answer
    x = 55,018.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.